Drier for yarns or cords



March 1944- M. CASTRICUM DRIER FOR YARNS QR CORDS Filed June 1'7, 1943ATTORNEY Patente d Mar. 28, 1944 UNITED STATES PATENT OFFICE DRIER FORYARNS OR CORDS Martin Castricum, Grosse Pointe, Mich, assignor to UnitedStates Rubber Company, New York, N. Y., a corporation of New JerseyApplication June 17, 1943, Serial No. 491,158

4 Claims.

This invention relates to a drier for yarns or cords and moreparticularly to an extremely simple tube construction for rapidlydryingyarns or cords which are being advanced under tension.

The drier f the present invention may be employed in various fieldstodry strands under tension before they are wound into a package, buthas been developed more particularly for use in connection with theapparatus of the Hansen and Benson U. S. application, Serial No.491,160, filed June 1'7, 1943, Method of and apparatus for treating yarnor cord.

In treating yarns or cords in accordance with the application justmentioned; it is important to dry the wet and highly stretched yarns orcords under tension as they are advanced towards the winding orpackaging mechanism so that they will be dry by the time they reach thepackage forming position, and it is important to dry such yarns or cordsas rapidly as can be done without scorchin them since the speed withwhich the yarns or cords can be treated upon such apparatus depends uponthe speed of the drying operation.

The primary feature of the present invention resides in a long heatedtube having a hard smooth outer surface over which yarns or cords to bedried may slide freely in direct contact with th surface of the tube asthey travel lengthwise thereof. Direct contact of the yarns or cordswith the heated surface of the tube throughout its length is secured bycausing such yarns or cords to travel in a long spiral path about thetube so that their tension will "hold the spirals in contact with thetube surface.

One important advantage of the present type of drier resides in theconstruction whereby it is free from operating parts, and anotheradvantage resides in the fact that the tube may be many feet long sothat each yarn or cord will travel in direct contact with its hotsurface throughout a distance of many feet to dry it rapidly. Anotheradvantage of the present construction resides in the fact that it isrelatively easy to maintain the tube at any desired temperature and tocontrol the tension of the yarns or cords during the drying operation.

The above and other features of the present invention will be more fullyunderstood from the [following description when read in connection withthe accompanying drawing wherein:

Fig. l. is a side elevation of a drier for yarns or cords, constructedin accordance with the present invention.

Fig. 2 is a similar view on a larger scale with parts in section andwith the central portion of the tube broken away, and;

Fig. 3 is a section taken on the line 3-3 of Fig. 2.

'The drying tube In may vary in diameter from several inches to manyinches depending largely upon the number of yarns or cords that are tobe advanced simultaneously along is surface and the length of the tubemay be ten, twenty or more feet depending upon the speed at which it isdesired to dry the yarns or cords. It is apparent that the greater thelength of the tube the quicker the yarns or cords traveling lengthwisethereof in contact with its surface can be dried without subjecting themto such high temperatures that they are likely to be charred orotherwise injured by the heat of the tube.

The tube i0 is preferably made of metal such as steel having a groundsurface which is plated and polished so that the yarns or cords willslide smoothly upon its surface, and so that the surface will not rustor corrode from the moisture 0 the wet strands.

The tube Ill may be heated by various mean but is preferably heated bysteam, for tempera tures above the boiling point, and by hot wate fortemperatures below the boiling point. In mo: cases it will be desirableto heat the tube to temperature well above the boiling point by th useof super-heated steam,jand in this case th tube Ill will need to bestrongly constructed an capable of confining steam under considerabl.pressure. The tube i0 may therefore be given the constructionillustrated in Fig. 2 wherein i will be seen that the long tube properII has it ends closed with the metal heads l2 and I3 whiclare fittedwithin the ends of the tube II and welded in place. The tube I0 is shownas provided with the steam inletpipe l4 threaded centrally through thehead l2, and with the outlet pipe I5 leading from the lower wall of thetube I l adjacent the head [3 and through which steam and water thatcondenses out of the steam may escape.

In order that water which condenses inside the tube may drain therefrom,it is desirable to support the tube III in aslightly inclined positionas shown in Fig. 1 so that the outlet pipe l5 will extend downwardlyfrom the lowest portion of the tube. The tube I0 is therefore providedat its opposite ends with the supporting rods IS, the lower ends ofwhich are bent laterally to extend into drill holes formed in the headsl2 and I3 and are preferably welded therein, and the upper ends of theserods are threaded as shown to recelve the turn buckles II whichcooperate with the rods N to suspend the tube II at the desiredinclination from the overhead structureor supporting frame I! having thetransverse bars 20 to which the rods II are secured.

The yamsor cords 2| to be dried may be supplied to the tube In in a wetcondition from any yarn or cord treating mechanism, not shown, and

advanced lengthwise of the tube in the direction.

indicated by the arrow. These yarns or cords may be advanced undercontrolled tension by any suitable means.

It is desirable to maintain the yarns or cords in spaced relation toeach other throughout the drying operation and to cause them to pressfirmly against the smooth outer surface of the the axis of the drum IIIas best shown in Fig. 3.

A similar disc 22 is provided at the opposite end of the tube Ill and ismounted upon the steam inlet pipe I.

The arrangement is such that the concentrically disposed apertures 25serve to hold the yarns or cords 2| in spaced relation to each other asthey approach the tube II and are delivered thereto, and the desiredlong spiral movement is imparted to these yarns or cords as they travelalong the tube by winding them around the tube, say for one completerevolution as shown, from one guide disc 22 to the other. constructionwithout moving parts the yarns or cords 2| are maintained in spacedrelation to each other and in direction contact with the surface of thetube lflthroughout their travel along the tube, and due to their contactwith the hot surface of the tube throughout its length they will be Bythis simple Having thus described my invention, what I claim and desireto protect by Letters Patent is:

1. A drier comprising a long heated tube having a hard smooth outersurface over which yarns or 5 cords will slide freely, guide means atone end of the tube for guiding yams or cords to the tube v and at theopposite end of the tube for guiding them therefrom so that when theyarns or cords are drawn forward under tension they will contact theouter surface of the tube and travel lengthwise thereof in long spiralpaths in drying engagement with the tube.

2. A drier comprising a tube having a hard smooth outer surface overwhich yarns or cords will slide, means for supplyin a heating fluid tothe interior of the tube, guide means at one end of the tube for guidingyarns or cords to the tube and at the opposite end of the tube forguiding the yarns or cords therefrom so that when they are drawn forwardunder tension they will contact the outer surface of the tubeand travellengthwise thereof in long spiral paths in drying engagement with thetube.

3. A drier comprising a heated tube having a hard smooth outer surfaceover which yarns or cords will slide, guides at the opposite ends of thetube disposed concentrically about the tube axis and adapted to guide anumber of spaced yarns or cords to one end of the tube and from itsother end so that when they are advanced under tension lengthwise of thetube they will contact its outer surface and travel in long spiral pathsin drying engagement with the tube.

4. A drier comprising a metal tube adapted to have a heating mediumcirculated therethrough, and formed with a smooth outer surface overwhich yarns or cords will slide, guide means supported by the tube atits ends in concentric relation about the tube axis and adapted to guidea 40 number of spaced yarns or cords to one end of the.

tube and from its other end so that when they are advanced under tensionlengthwise of the tube they will contact its outer surface and travel inlong spiral paths in drying. engagement with the dried rapidly so thatupon leaving the discharge tube.

end of the tube they will be practically free of moisture.

MARTIN CASTRICUM.

